| 摘要 |
a. Device for protecting a support, being composed of a longitudinal fuse-like universal section (beam) 2 as well as means 5 for fixing this section (beam) to the support. b. The device is characterised in that the section (beam) 2 is symmetrical with respect to a plane Z passing through its longitudinal axis x-x' and is fixed to the support 1 so as to be able to move by rotation through an angle alpha about its longitudinal axis x-x' in such a way that the forces F1, F2 exerted on the section (beam) 2 are always applied on the latter approximately perpendicular to its plane of symmetry Z. c. The invention applies to the protection of poles carrying electrical conductors. <IMAGE>
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